Version 4
SHEET 1 880 680
WIRE 128 112 48 112
WIRE 160 112 128 112
WIRE 256 112 224 112
WIRE 320 112 256 112
WIRE 336 112 320 112
WIRE 48 144 48 112
WIRE 128 144 128 112
WIRE 256 144 256 112
WIRE 128 256 128 208
WIRE 160 256 128 256
WIRE 256 256 256 208
WIRE 256 256 224 256
WIRE 48 288 48 224
WIRE 256 288 256 256
WIRE 256 288 48 288
WIRE 48 304 48 288
WIRE 128 304 128 256
WIRE 320 304 320 112
WIRE 320 304 128 304
WIRE 336 304 320 304
FLAG 48 304 0
SYMBOL voltage 48 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 10 30)
SYMBOL diode 160 128 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 160 272 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL diode 144 208 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL diode 272 208 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMATTR Value 1N4148
TEXT 14 314 Left 2 !.tran 1
